Canon EF 28mm f1.8 USM brand_Fotodiox The GS5370B Quick Release Plate

The GS5370B Quick Release Plate Square B quick release plate is designed for Gitzo off-centre ball heads

For full dimensions and instructions

all you'll see are frame lines- until you open your other eye

which includes the ME/MX (and many digital SLRs

But once you've got it set up

Canon EF 28mm f1.8 USM brand_Fotodiox The GS5370B Quick Release PlateThe Canon EF 28mm f1. 8 USM is an uncommon wide angle lens for Canon EF mount with a fast f1. 8 aperture and it's hardly larger than a standard 50mm lens. Clean lens, minor cosmetic wear, excellent performance, and it's also got a real nice character wide open. A neat lens.